BENJAMIN CHILTON

STEVEN ANDREW MARTIN

ROSE SCHNEIDER

ECJ PARKING LOT REDESIGNUT AUSTIN: GROUP 5

OVERVIEW

• Define Study Area

• Current Operation & Problems

• Research & Design Challenges

• Calculations

• Final Design Decision

• Next Steps

STEP 1: REPRESENTATION

STEP 1: REPRESENTATION

STEP 2: PROCESS

• Average Annual Rainfall: 32.15 in

• Roof flow piped directly into Waller Creek

• Flow from parking lot to Waller Creek

STEP 3: EVALUATION

• Inadequate drainage

• Unfiltered runoff

• Large obtrusive wall

• Erosion of soil

• Uncontrolled flow

• Wasted space

STEP 4: CHANGE

• Remove and replace the existing wall

• Porous pavement

• Rain garden

POROUS PAVEMENT

• Pavement surface with a stone reservoir underneath

• Temporarily stores surface runoff before infiltrating it into the subsoil

• Incorporates void spaces that allow infiltration

RAIN GARDEN

• Capture stormwater and provide for natural infiltration

• Decrease flooding risks

• Filter pollutants

• Alleviate erosion

DESIGN LAYOUT

Total area: 35,300 ft2

Asphalt: 14,700 ft2

Porous pavement: 17,900 ft2

Rain garden: 2,717 ft2

STEP 5: IMPACT, RAIN GARDEN

STEP 5: IMPACT, POROUS PAVEMENT

STEP 6: DECISION